A Ciphertext Data Deduplication Algorithm for Cloud Storage Anti Edge Channel Attacks
Considering the high similarity of ciphertext data in cloud storage,which leads to significant difficulty in deduplication,a ciphertext data deduplication algorithm based on execution mechanism is proposed.Construct a ci-phertext dynamic balance jump table,and based on the construction and description of the dynamic balance jump ta-ble,obtain the dynamic superposition characteristics of ciphertext data that resist edge channel attacks.A data dedu-plication framework against edge channel attacks is proposed based on the construction and update results of a cipher-text dynamic balanced jump table.The cloud storage provider performs three processes:data encryption,data label query,and data deduplication.Cloud storage uses tags to represent data query operations.Once the query count ex-ceeds the threshold,the data encryption program is executed to encrypt the file,and the overlapping ciphertext is de-duplicated according to the execution command provided by the cloud storage service provider.The experimental re-sults demonstrate that the proposed method performs well in deduplication of ciphertext data,and the cloud storage space occupancy is significantly improved after deduplication.
Anti edge channel attacksCloud storageDeduplication of ciphertext dataDynamic balance jump ta-ble
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